Dazai and Chuuya have been friends since childhood; meeting when Dazai was at his lowest, slowly making him more and more open and accepting.

Being friends since childhood means they have seen every part of each other, been there for one another, and have the closest relationship ever.

Well. Then there’s Sasaki, Dazai’s girlfriend. It’s like Chuuya can’t even get a SECOND of his best friend’s time before she comes in and steals him away, always saying she knows best.

Which of course. She doesn’t, but Dazai’s too blind to see that. Blinded by love, forgetting his friendship, his own best friend.